Yarn-tube frame



Nov. 11, 1924 G. P. FINDLAY ET AL.

YARN TUBE FRAME Filed May 5, 1922 agito?" nfys 4 Patented av. ii, 1924.

GEORGE I. FINDLAY, GEORGE'D. `LOGIKWOOD, AND JOHN G. SODERBERG, OF WORCES- TER, MASSACHUSETTS, ASSIGNORS TO CROMPTON & KNOWLES LOOM WORKS, A.

CORPORATION OF MASSACHUSETTS.

f YARN-TUBE FRAME.

' Application med may 3,

To all whom t may cm1/ccm:

Be it k'nown that we, GEoRGE P. FINDLAY, GEORGE D. LooKweOD,` andv JOHN G. Sonna- BERG, citizens of the United States, all residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Yarn-Tube Frame, of which the following is a specification.

This invention relates to yarn tubeframes as used in looms and particularly in Axminster carpet looms.y now built of much greater width than was formerly the practice and the tube frames are of correspondingly increased length, each frame now containing a very large number of individual yarn tubes.` Several hundred of these tube frames may be required to equip a single carpet loom, making the tube frames by far the largest and most expensive accessory of the loom. A

It is the general object of our inventionto improve such yarn tubefra-mes in numerous details of construct-ionby which .the tube is mechanically perfected while at the same time its cost of manufacture is materially reduced. 1

One of the specific objects of our inven` tion is to provide an improved construction by which sect-ions of yarn tubes may be secured to a tubular frame member without the use of solder orbrazing and in 'such a way that a section may be readily removed and replaced in case ofaccident thereto.

Another feature of our inventionv relates to the provision of means for preventing yarn from being caught between .the endsof adjacent tube sections. y y

Our invention further relates to arrange-v ments and combinations of parts which willl be hereinafter;xk described and `more particularly pointed out in the appendedlclaims` preferred form of our invention is shown in the drawings in which y Fig. 1 is a front elevation of one'of our improved tube frames;

Fig. 2 vis a transverse sectional elevation, taken along the line 2 2 in Fig 1;

Fig. 3 is a front elevation of the tube frame with the yarn tubes removed and vis taken substantially along the line 3 3 in Fig. 2;

Fig. 4 is a detail lsectional view of means for fastening the tube sections to the tube frame, taken along the line 4 4 in Fig. 1;

Such looms are l brackets. ,v

, vents contact thereof with 1922. serial No. 558,153.

Fig. 5 is a detail front elevation showing:

the means for bridging the space between` y adjacent tube sections; and

Fig. 6 is aV detail sectional view, ,taken along the line 6 6 in Fig. 5.

Referring to the drawings, we have shown a tube frame comprising a rectangular'metal tubular member 10 having walls of substantial thicknessv and extending thefull length of the frame. Brackets 11 are secured to the tube 10v at the ends thereof and intermediate brackets or bearings 12 arej fastened to the upper surface thereof, said brackets land bearings supporting theyarn spool or spools 13 from which the yarnis `delivered tothe yarn tubes. The brackets 11 cover and tightly close the `ends offfgthe .may be secured,

tubular member 10 yand therein by screws 14- (Fig. 3).

. The interior of the tubular member 10 is'v ment of thel soft filler buta convenient conf struction` involves the use of a ypair )of taperedouter strips and a double tapered center strip which may 'be driven between the outer strips to seat them firmly inthe tubular member 10.

After the strips are inserted, the brackets 11 maybe secured in place, closing ythefends of the member 10 and holding the strips from displacement. The upper and lower strips are suitablyrecessed to admit entrance of the inwardly extending arms 16 ofA the `As shown in the drawings, these plates 18 are of angular section and ,each plate is bent outward at 19 toformvv a rib or corrugation extending lengthwiseA of the strip and adjacent the upper ends ofthe yarn tubes 17. 4This rib supports vthe yarn and prethe sharp upper edges of the yarn tubes.

' Thev plates 18 are preferably made in relatively short lengths and may bermly se-l be of the yusual' cured to the tube'frame by screws 20 passing through openings'in the plates 18 and also through corresponding openings 21 in f the tubular member 10. The screws are firmly held in the relatively soft wood filler and retain the sections of yarn tubessecurely in position.

The screw openings 21 in the member 10 are preferably countersunk and the screws` are also preferably of the countersunk head type, so that the screws will draw the relatively thin metal of the plates 18 intothe countersunk openings as shown in Fig. 4.

This method of attachment has two important advantages. The tubes arefirmly held from lateral displacement by the inl wardly projecting portions of the tube plates and furthermore the screw openings in the member 10 are effectually sealed, preventing the entrance of air or moisture which might injuriously affect the wood filler.

It is found in practice to be very diiicult to obtain absolutely close fitting joints between the tube sections or plates 18 and where spaces occur, there is a possibility of the yarn being caught on the edges of the plates. To reduce this possibility, we form a projection 21 on one end of each late 18, said projection being adapted to t under the rib or corrugation 19 on an adjacent section as shown in Figs. 5 and 6. This con-l struction bridges across the space between which there is no soldering or other appli-v cation of heat to the member 10 at any stage in the construction of the tube frame, the tubes 17 being soldered to the .plates 18 while the plates are entirely separate from the member'lO. This" method ofconstruc-f' tion also avoids the possibility of overheating and possibly igniting the fillers 15 within the tube 10. The omission of the soldering also improves the appearance of the frames, as the tubular members are not rusted or discolored by soldering paste or acid. The cost is also reduced, as the outside of the tubular members may have a less expensive finish when there is no acid to resist, and injury of yarn by rust and acid is avoided.k Soldering also` involved addil tional labor in scraping and smoothing the parts after soldering and in clearing the narrow slots between the tubes. We have already referred to the possibility of convenient removal and replacement of a single section of tube in case of accidentto one orV more of the tubes contained therein.

Having thus described our invention and certain vadvantages thereof, it will be evideut that changes and modifications can be made in our-invention within the spirit and scope thereof as set forth in the claims, and we do not wish to be otherwise limited to the details herein disclosed, but what We claim is1- 1. A yarn tube frame comprising a tubular metal frame member, a relatively soft filler within said member, a plurality of yarn tubes, a plate to which a series of said tubes are secured, said .plate and frame member having valigned spaced transverse .openings therein, and fastening devices eX- tending freely through said openings and having kholding engagement in the soft filler within said. frame member.

2. A yarn tube frame comprising a relatively long frame member,a series of relatively short yplates mounted on the frame member, a plurality of yarn tubes secured in relatively small groups to said plates, and

`means to bridge they space between the endsy of adjacent plates and thus prevent the lodging of the yarn in said space.

3. A yarn tube frame comprising a metallic tubular shell extending throu hout the length of the farme, a filler of so er material, a plurality of yarn tubes assembled in a plurality of separate relatively small groups and fastening means extending transversely of said shell for securing the j separatey groups to the metallic shell and for permitting convenient removal thereof, Said fastening means freely passing through the metallic shell and being embedded in holding engagement in the relatively soft vrnatel rial of the ller.

4. A yarn tube frame comprising a tubuf lar member and a plurality of plates secured thereto and p having yarn tubes mounted thereon, saidplates being formed in relatively short sections and said plates havingy vmeans integral therewith to bridge the space betweeny the pairs yof adjacent p ates.

5. A yarn tube frame comprising a tubular member, a series of plates secured thereto and each having a plurality of yarn tubesv mounted thereon, said plates each having a corrugation adjacent the upper ends of thel'lzo yarn tubes and being formed in relatively short sections, each plate having a projection at one end 'extending under the corru-.

gated part of the next adjacent plate and bridging the space between said plates.

6. A yarn tube frame comprisin a. rectangular tubular ,member, a soft ler for said member comprising reversely disposed` tapered wood strips fitted within said member, a plurality of yarn tubes, and means to secure said tubes to sa' member, said means comprising fastening devices extending through said tubular member and fixed 'in said wood strips.

7. A yarn tube frame comprisin a rectanular tubular member, a soft ler for sai member comprising reversely disposed tapered wood strips fitted within said member, a plurality of yarn tubes, and means to secure said tubes to said member, said means comprising fastening devices extending through said tubular member and enterin said filler from two adjacent sides of sai member.

8. A yarn tube frame comprisin a rectangular tubular member, a soft ller for said member comprising reversely disposed tapered wood strips fitted within said member, a plurality of yarn tubes, and means to secure said tubes to said member, said means comprising Ifastening devices extending throu h said tubular member and enterin said Eller from two adjacentsides of sai member and certain of said fastening devices extending into more than one ller strip and preventing longitudinal displacement thereof.

9. A yarn tube frame comprising a metal plates and tu ular member and secured therein.

10. A yarn tube frame com rising a metal tubular member with Wal of substantial thickness, a plurality of yarn tubes, a series of plates to which said tubes are permanently secured in relatively small groups, and fastening devices extending through said plates and tubular member and secured therein, said member having countersunk openings and said lates having portionsv displaced into sai openings by said fastening devices and being thereby held from lateral displacement.

In testimony whereof we have hereunto aiixed our signatures.

GEORGE P. FINDLAY.` GEORGE D. LOCKWOOD. JOHN G. SODERBERG. 

